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Title |
Evaluation of Punching Shear Safety of a Two-Way Void Plywood Slab System with Form
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Authors |
허무원(Moo-Won Hur) ; 우형식(Hyung-Sik Woo) ; 박정민(Jung-Min Park) ; 강현욱(Hyun-Wook Kang) ; 박태원(Tae-Won Park) |
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DOI |
https://doi.org/10.11112/jksmi.2021.25.5.182 |
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Abstract |
VPS(Void Plywood Slab System, VPS) has optimized the shape of the hollow material. In addition, it has a function to prevent the floating of the hollow material and the separation due to the working load. In this study, the punching shear capacity of flat plate was performed using Void Plywood Slab System with form work panel proposed in the previous study. As a result of the test, the strength of the VSPS specimen in which the hollow material was placed beyond 2.0 times the column width from the loading point was reduced by 9.4% compared to the reference specimen. However, the strength value was about 1.57 times higher than the design value suggested by KBC 2016. It was found that there was no change in stiffness compared to the reference specimen until shear failure occurred in the VSPS specimen in which the hollow material was placed. It can be seen that this experiment is being destroyed by shear as the flexural reinforcing bars are sufficiently reinforced.
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